Supplemental Accumulated Other Comprehensive Loss Information (Details 1) - Defined and Postretirement Benefit Plans - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]
Prior service benefit	$ (0.3)	$ (1.4)	$ (0.7)	$ (2.8)
Settlement loss	13.5	0.0	13.5	0.0
Actuarial loss	0.4	0.3	0.8	0.7
Curtailment gain	0.0	0.0	(4.0)	0.0
Total before taxes	13.6	(1.1)	9.6	(2.1)
Less tax (benefit) expense	(5.4)	0.4	(3.8)	0.8
Total, net of tax	$ 8.2	$ (0.7)	$ 5.8	$ (1.3)